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goldfiish [28.3K]
3 years ago
10

Why is water not used as a solvent in paper chromatography​

Mathematics
1 answer:
Anastaziya [24]3 years ago
8 0

Answer:

Because the kind of compounfds that you try to determine using paper chromatography (organic compounds) are usually not soluble in water. Furthermore, water could react chemically with some of this compounds, because it's a very reactive molecule. You need organic solvents that are mostly inert.

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I am having trouble figuring out this math problem. I have tried every equation that I can think of the problem states 6×-3=5×+7
stellarik [79]
You would need to combine like terms to find your answer.
6x - 3 = 5x + 7

You would subtract 5x from both sides. Remember, x = 1x
x - 3 = 7

Lastly, you would add 3 to both sides.
x = 10

I hope this helps!
8 0
3 years ago
Read 2 more answers
Determine all values of k for which the roots of the equation x^2-6x+k=0 are complex
MaRussiya [10]
Complex roots occur when b^2 - 4ac is negative.

So we have (-6)^2 - 4.1.k < 0
                      -4k < - 36
                       k > 9
6 0
3 years ago
Pls help asap due tomorrow
Svet_ta [14]

Based on the information given, it should be noted that the least number of marbles that can be in the bag will be 10 marbles.

<h2>Solution to the probability.</h2>

If the bag contains 60 marbles, the number of red marbles will be:

= 1/5 × 60

= 12 marbles.

The number of white marbles will be:

= 3/10 × 60

= 18 marbles.

The number of blue marbles will be:

= 60 - (12 + 18)

= 60 - 30

= 30 marbles.

Furthermore, when the bag has 4 red marbles and 6 white marbles, there'll be 10 blue marbles.

Lastly, to find the probability of choosing a blue marble, we've to multiply 1/2 by the number given.

Learn more about probability on:

brainly.com/question/25870256

4 0
3 years ago
What is the sum of 2 2/3 and 1 5/6?
stellarik [79]
First make each fraction into an improper fraction

2 2/3 = 8/3
1 5/6 = 11/6

Next, make the fractions have same denominators. Note, that what you do to the denominator, you do to the numerator.

8/3(2/2) = 16/6

Add
16/6 + 11/6 = 27/6

27/6 = 4 3/6 = 4 1/2

4 1/2 is your simplified answer

hope this helps
8 0
3 years ago
PLEASE HELP !!! :) :( Please!
Ludmilka [50]
Y= 1x + 8
both is increasing by one
8 0
3 years ago
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